Singleton.h

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/***************************************************************************
 *   Copyright (C) 2007 by Pierre Schmitt, Ludovic Giacomello, Nhi Ly   *
 *      *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifndef SINGLETON_H
#define SINGLETON_H

#include <iostream>
#include <cstdlib>
#include <fstream>

#include "Mutex.h"

using namespace std;

template <typename T>
class Singleton{
protected:
        Singleton() {}

        ~Singleton() {}
public:
        static T *GetInstance (){
                static Mutex m;
                m.Lock();
                if(mSingleton==NULL) mSingleton = new T;
                m.Unlock();
                return (static_cast<T*> (mSingleton));
        }
        
        static void KillInstance(){
                static Mutex m;
                m.Lock();
                if(mSingleton!=NULL){
                        delete mSingleton;
                        mSingleton = NULL;
                }
                m.Unlock();
        }
private:
        static T *mSingleton;
};

//Initialisation du pointeur, très important!!!
template <typename T>
T *Singleton<T>::mSingleton = NULL;

#endif

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